LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jaguar >> 1990 >> Sovereign L6-4.0L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Spark Plug >> Adjustments
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Spark Plug: Adjustments

1. Remove spark plugs. Refer to Powertrain Management/Ignition System/Spark Plug/Service and Repair.
2. Clean or replace plugs as needed.

Checking Spark Plug For Wear, Damage, Or Deposits:





3. Set plug gap to:

0.035 in (0.9 MM)

4. Refit plugs and torque to:

17-20 lbft (23-28 Nm)